Physics, 22.12.2020 14:00 tami5

Krypton-85 has a half-life of 10.76 years. It decays into rubidium-85. Suppose a sample contains 4 atoms of krypton-85 and 12 atoms of rubidium-85.
About how old is the sample?
A. 10.76 years
B. 21.52 years
C. 43.04 years
D. 32.28 years

Answers: 1

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Krypton-85 has a half-life of 10.76 years. It decays into rubidium-85. Suppose a sample contains 4...